Imports of package plugin

PathSynopsis
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/gogo/protobuf/protoPackage proto converts data structures to and from the wire format of protocol buffers.
github.com/gogo/protobuf/protoc-gen-gogo/descriptorPackage descriptor provides functions for obtaining protocol buffer descriptors for generated Go types.
mathPackage math provides basic constants and mathematical functions.